Global Patent Index - EP 3173313 B1

EP 3173313 B1 20190320 - ELECTRIC POWER STEERING DEVICE

Title (en)

ELECTRIC POWER STEERING DEVICE

Title (de)

ELEKTRISCHE SERVOLENKVORRICHTUNG

Title (fr)

DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE

Publication

EP 3173313 B1 20190320 (EN)

Application

EP 15845128 A 20150424

Priority

  • JP 2014196278 A 20140926
  • JP 2014225184 A 20141105
  • JP 2014262973 A 20141225
  • JP 2015025387 A 20150212
  • JP 2015062572 W 20150424

Abstract (en)

[origin: EP3173313A1] A slide member (26) is externally fitted to an outer peripheral surface of an outer ring (20) configuring a tip side bearing (9a) for supporting a tip portion of a worm shaft (6a) so as to be displaceable in an axial direction. A first inclined cylindrical face portion (32) which is an inclined surface disposed on an outer peripheral surface of the slide member (26), and a second inclined cylindrical face portion (30) which is an inclined surface disposed on an inner peripheral surface of a guide member (28) internally fitted and fixed to a holding hole (10a) of a housing (3a) are fitted to each other so as to be slidable in an inclined direction of the respective inclined cylindrical face portions (32, 30). An elastic ring (29) which biases a bearing holding member (26) against to one side in the axial direction is disposed. This realizes a structure which can shorten an axial dimension of a tip side portion of the worm shaft in an electric power steering device including biasing means for minimizing backlash in a meshing portion of a worm reduction gear.

IPC 8 full level

B62D 5/04 (2006.01); F16H 55/24 (2006.01); F16H 1/16 (2006.01)

CPC (source: EP US)

B62D 5/0409 (2013.01 - EP US); B62D 5/0454 (2013.01 - US); F16C 23/08 (2013.01 - EP US); F16C 27/066 (2013.01 - EP US); F16H 1/16 (2013.01 - EP US); F16H 55/566 (2013.01 - US); F16H 57/0006 (2013.01 - EP US); F16H 57/022 (2013.01 - EP US); F16H 57/12 (2013.01 - US); F16C 19/06 (2013.01 - EP US); F16C 2361/61 (2013.01 - EP US); F16H 2057/0213 (2013.01 - EP US); F16H 2057/0222 (2013.01 - EP US); F16H 2057/127 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 3173313 A1 20170531; EP 3173313 A4 20171108; EP 3173313 B1 20190320; CN 106687358 A 20170517; CN 106687358 B 20190531; JP 6428782 B2 20181128; JP WO2016047189 A1 20170427; US 10183693 B2 20190122; US 2017144695 A1 20170525; WO 2016047189 A1 20160331

DOCDB simple family (application)

EP 15845128 A 20150424; CN 201580046694 A 20150424; JP 2015062572 W 20150424; JP 2016549974 A 20150424; US 201515327074 A 20150424